Professor Buchwald will talk about the origin of the Cannon River and how the river has been used since European settlement began in the 1850s. He will discuss how he and his Carleton undergraduate students became involved in calculating the amount of water in the river to evaluate whether the Cannon could serve as a source of cooling water for a large coal-fired power plant that was proposed in the early 1970s but never completed. This experience led to his continued career dealing with environmental issues and involving his students in these projects.